Improvement in stump-extractors



tirant -iatra SAMUEL HARMAN, or LA PORTE. INDIANA.

Letters Patent No. 109,316, dated November 15, 1870.

IMPROVEMENT |N.sTu'MPExTRAc1-ons.

The Schedule refenied to in these Letters Patent and making part of the same.

I, SAMUEL HARMAN, of La Porte, in the county of La Porte and State of Indiana, have invented cer tain Improvements in Grub-Extractors, of which the following is a specification. y

. My invention relates to a portable grabber, ot' novel construction, for the purpose of pulling grnbs, in clear-4 ing timberedland, and for other purposes and It consists in a combination and arrangement of parts more explicitly hereinafter set forth.'

' In the accompanying drawing which', together with the letters and figures of reference marked thereon,- forms part of this specification- Figure .`l. exhibit-s a plan or top view of my` invention.

Figure 2. is a central vertical section of same.

y General Description.

A A A A are four sleepers or beams, mortised to each other, and lyingat right angles to forma square aperture in the lniddle, which surrounds an upright post, B, being firmly secured thereto.

"his post extends downward, and when the m4achinc is ready for operation is buried in the ground, while the frame-work A A rests atly upon the surface of the ground.

- G is a vertical pivot or shaft, extending upward from the p ost B.

Y D is a verticalv drinn or barrel, which revolves loosely'upon the pivot C.

i This drum ear-ries the power-rope or chain cl, whichis wound thereon by means of a lever, E, to which ypower is applied by a horse Vor other animal driven in a circle about the machine.

, A recess is cutinthe top of the drum Dinto which fits'a hub, e, attached to the lever E.

E is a plate, att-ached to the top of the drum.

A From the opposite sides of this plate extend, hori.-l y

zontally, arms or lugs, which receive pins f, by means ot' which the lever E is locked or secured from turning upon the drum, so that the revolution of the lever must carry the drumwith it.

rlhe rope or chain (Z is connected to the grub to be pulled, and the power applied at the lever E.

The results obtained by this simple contrivance are surprising and almost beyond belief. Large black- 'oak grubs have been pulled, more than fifteen inches in diameter; in fact, trees that have hitherto ordinarily been felled by the ax, and then the stumps laboriously estracted by the ordinary stump-extrac tors.

In clearing land with my machine I pull such trees bodily out by the roots.

In using my grub-extractor I set it' in a convenient place, first digging a hole for the reception of the post B, and then` securing the frame A A"by stakes a driven into the ground, to resist the turning ofthe frame.

I can then proceed to work upon all grubs and trees within a radius equa-Alto the length of my rope d..

v My invention is exceedingly simple and cheap, while at the same tim'e'it is of such a construction as to be very strong and durable, and may be used by a farmer for many'pnrposes other than that of pnllingrgrnbs.

Having thus fully described my invention, That I claim, and desire to secure by Letters Pat-- ent, is The frame-work A A', upright post B, carrying a vertical pivot C, the drum D revolving loose-upon said pivot G,.the rope d, andthe lever E, al1 combined and arranged as specifiedand shown, and for the purpose set forth.

Witnesses Y SAMUEL HARMAN.

n. ELIAS Comas THOMAS.

SEBASTIAN LAY. 

